It would be good to hear if this is the fix. I realize the scan tool uses voltage same as the ECM but you can get an indicator of issues with an Ohm meter and that was the question. Even though it is called a 5 volt circuit the range is most likely 0.5 to 4.5 volts. By adding 5 volts you may not get accurate readings. Best of luck and i hope this is the fix. I had mine out yesterday and it ran as it should. I did have the hesitation from new but as i got some miles on the machine it just went away.
